Final answer:
Physical and chemical properties of oxygen gas, octane, and copper.
Step-by-step explanation:
An example of a physical property of oxygen gas is its colorless and odorless nature. It is a gas at room temperature and pressure. Oxygen is a highly reactive element, so an example of a chemical property is its ability to support combustion.
An example of a physical property of octane is its density, which is lower than that of water. Octane is a volatile liquid at room temperature and pressure. A chemical property of octane is its ability to combust and release energy.
A physical property of copper is its reddish-brown color. It is a ductile metal, meaning it can be drawn into wires. A chemical property of copper is its resistance to corrosion, which allows it to be used for various applications, such as electrical wiring.